diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 6fb89d2..50660bf
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Sphinx==1.2.3
 docutils==0.12
 enum34==1.0.3
 inflection==0.2.1
-py==1.4.26
+py==1.10.0
 pytest==2.6.4
 requests==2.4.3
 sphinx-rtd-theme==0.1.6